I am working on a publication in InDesign, working on a 2019 Macbook Pro display, in which there are around 300 links to images. Some images are in RGB, and some in CMYK. Here is an example of an image on-screen:
I would like to prepare the file for printing, by making sure all images are converted to CMYK. I have tried all the different options in the
output section of the Export PDF dialogue...
I notice that when
Profile Inclusion Policy is set to
Don't Include Profile (as requested by the printer) – the exported PDF looks very darkened and dull in the System Viewer (Preview), going into greenish-yellow:
However, when I open it in Adobe Acrobat Pro, the colours looks much more true to the original:
I would like to know how to convert my whole PDF to CMYK, and preserve the nice colours, while not including the profile in the PDF (as the printer requested)...
I would be very thankful for the correct course of action, to deliver to the printer a CMYK-only PDF, with colours as faithful to the original as possible.